ARMYTRIX Stainless Steel Valvetronic Catback Exhaust System Quad Blue Coated Tips BMW 5-Series F10 11-17To harvest the full potential of the BMW engine, we utilize quality T304 stainless steel, forged with the most advanced technologies and by the highest standard, to build our valvetronic exhaust. Meticulously engineered, the system handles an increased volume with ruthless efficiency. The refinement and amplification of power and sound alter the entire identity of the vehicle. Upgrades to HP and torque provide more freedom than ever and the auditory

This exhaust uses all factory hanger locations

body roll in corners and nose-dive under braking

Note the OEM S55 air intake flows very well from the factory so gains are mostly present at higher boost levels and higher RPM where airflow requirements are highest

New airbox lid seals off underhood heat and increases air volume

One of the greatest features of IE downpipes is that they are a breeze to install

CLASSY AND CLEAN APPEARANCE

Deluxe Bolt-On Tips)

If you're looking to feel your shifts

and bellmouths work together to ram more air into the cylinders

Reduced Strut Mount Deflection

high temperature glass fiber packing and are stamped with the Unitronic logo

Front 40-80mm (1